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Finding the Fourth Proportional to 1,597.15, 2,393.96 and 672.44

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Solution

The fourth proportional to 1,597.15, 2,393.96 and 672.44 is: 1,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.15 : 2,393.96 = 672.44 : x
  2. Step 2: Convert to fraction form
    1,597.15/2,393.96 = 672.44/x
  3. Step 3: Cross multiply
    1,597.15x = 2,393.96 × 672.44
  4. Step 4: Simplify right side
    1,597.15x = 1,609,779.13
  5. Step 5: Solve for x
    x = 1,609,779.13/1,597.15
  6. Step 6: Final answer
    x = 1,007.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.